Mushroom-bullet.



H. W. STARKWEATHER.

MUSHROOM BULLET.

APPLICATION FILED SEPT. 13. 1913 Patented N014, 1913.

HENRY W. STARKWEATHER, OF NEW HAVEN, GONNECTIQUT, ASSIGNOB. TO -WIN- CHESTER BEPEATING ARMS C0., OFNEW HAVEN, CONNECTICUT, A CORPORATION.

MusHaooiLt-BULnEr.

Specification of Letters Patent.

Patented Nov. a, rare.

Application filed September 13, 1913. Seri al No. 789,596.

To all whom z'tmay concern l i Be it known that I, HENRY W. STARK- WEATHER, a citizen of the United States, residing at New Haven, in the county of New Haven and State of Connecticut, have invented a new and useful Improvement in Mushroom-Bullets; and I do hereby declare the following, when taken in connection with the accompanying drawings and the characters of reference marked thereon, to be a full, clear, and exact description of the same,-

and which said drawings constitute part of this-application, and represent, in-

Figurel, a view inside elevation of a a soft-metal core, the object being to roduce a bullet of superior mushrooming e ect.

With this end in view my invention consists in a mushroom bullet having certaindetails of construction as will hereinafter be described and pointed out in the claims.

In carrying out my invention as herein shown, I employ a jacket-body, 3, and a jacket-tip, 4, made independently of each other from relatively hard sheet-metal and concurrently swaged upon a soft-metal core, 5, which solidly fills the twoart acket thus roduced. The said jacketody is secured in place by being swaged upon the core. For securing the jacket-tip 4 in place its open inner end is deeply indented to form a plurality of corresponding retaining finge.s,' 6, having flaring anchor-ends or terminals, 7, these fingers, 6, heingseparated by wedge-shaped extrusion openings 8, which alternate with the fin ers, 6. Under the action of the swaging iesjg' 'the extreme edge,

9, of the jacket-body,'3, crowds the inner ends of the fingers, 6, inward until the exterior surface of the jacket-body forms a continuous line with the exterior surface of the jacket-tip, whereby the. inner ends of the fingers are slightly set inward and the fingers gripped by and between the edge of the jacket and the surface of the core, 5.

The swaging of the jacket-body andjacket-tip upon the core, as described, resultsm the formation of regular shallow cavities, 10, 1n the exterior surface of the bullet, due to the bending inward of'the ends of the fingers, 6. Those portions of the extrusion openings, 8, that extend beyond the edge 9 of the jacket-body when the tip is in place therein, have portions of the soft-metal core, 5, exuded into them so as to form small triangular areas 11 of soft metal alternating with the shallow cavities, 10,

aforesaid.

In the modified construction shown by. Figs. 3 and 4 of the drawings, the hollow jacket-tip, 12, has its open inner edge out to form four narrow retaining fingers, 13, having flaring anchor ends, 14, and separated by blunt-ended extrusion openin s, 15, the construction being" otherwise t e same as described in Figs.- 1 and 2.

I claim: i

1. A mushroom bullet having a soft metal core, a jacket-body applied thereto, and a hollow jacket tip the open end of which is indented to form a plurality of retainingfingers alternated with extrusion-openings,

h ends of the fingers beingfrictionally held between the core and the swaged edge of the acket, and the outer portions of the said extrusion openings being filled with extruded portions of the soft metal of the core which form interrupted areas of softmetal on the outside of the bullet.

2. A mushroom bullet having a soft metal core, a jacket-body, and a hollow jacket-tip" the open inner end of which is indented to form alternating retaining-fingers having anchor-ends and extrusion-openings, the; ends of the said fingers be ng fIlCtlOIlfilly In testimony whereof Lhavesigned this held between the surface of the core and the specification in the presence of two subscribswa'gedfedge of (tihe jacket and the f(flute; poring witnesses. v tions 0 the sai openings being 1e with extruded portions of the soft metaPof the V core which form interrupted areas of soft -Witnesses: metal on the outside of the bullet. THOMAS C. JOHNSON,

' i FRANK A.;PAUL, .7 .7 

